condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 8.542655 6.81291 10.2724 4 h after dark 2.24464 0.0 4.48928 8 h after dark 4.499405 0.0 8.99881 12 h after dark 4.079585 3.72952 4.42965